package com.wyj.gateway.config.knife4j;

import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.cloud.gateway.filter.GatewayFilter;
import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;

/**
 * TODO: https://blog.csdn.net/ttzommed/article/details/81103609
 *
 * @author wuyijie
 * @date 2022/2/13 5:19 PM
 */
// @Slf4j
// @Component
// public class SwaggerHeaderFilter extends AbstractGatewayFilterFactory {
//     private static final String HEADER_NAME = "X-Forwarded-Prefix";
//     private static final String URI = "/v2/api-docs";
//
//     @Override
//     public GatewayFilter apply(Object config) {
//         return (exchange, chain) -> {
//             ServerHttpRequest request = exchange.getRequest();
//             String path = request.getURI().getPath();
//             if (!StringUtils.endsWithIgnoreCase(path,URI )) {
//                 return chain.filter(exchange);
//             }
//             String basePath = path.substring(0, path.lastIndexOf(URI));
//             ServerHttpRequest newRequest = request.mutate().header(HEADER_NAME, basePath).build();
//             ServerWebExchange newExchange = exchange.mutate().request(newRequest).build();
//             return chain.filter(newExchange);
//         };
//     }
// }
